Knowledge base for software setup, errors, and daily tool work.

Fix Jupyter Notebook Token Expired or Invalid Error

When you try to open Jupyter Notebook and see “token expired” or “invalid token,” it usually mean...

Fix VSCode Extension Host Terminated Error Code 0

What does this error mean?

When you see 'Extension host terminated unexpectedly with erro...

Fix Windows Defender Port Already Allocated Antivirus Conflict

If you see an error like "port already allocated" or "address already in use" after installing a ...

How to Fix Windows Security 404 Not Found Error

If you see a '404 Not Found' error when opening Windows Security (formerly Windows Defender), the...